Home / 15,338,736.72-21,175,126.38-9,539,386.74

Finding the Fourth Proportional to 15,338,736.72, 21,175,126.38 and 9,539,386.74

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Solution

The fourth proportional to 15,338,736.72, 21,175,126.38 and 9,539,386.74 is: 13,169,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,736.72 : 21,175,126.38 = 9,539,386.74 : x
  2. Step 2: Convert to fraction form
    15,338,736.72/21,175,126.38 = 9,539,386.74/x
  3. Step 3: Cross multiply
    15,338,736.72x = 21,175,126.38 × 9,539,386.74
  4. Step 4: Simplify right side
    15,338,736.72x = 201,997,719,807,196.19
  5. Step 5: Solve for x
    x = 201,997,719,807,196.19/15,338,736.72
  6. Step 6: Final answer
    x = 13,169,123.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.