Home / 12,975,961.32-17,905,564.08-7,173,948.60

Finding the Fourth Proportional to 12,975,961.32, 17,905,564.08 and 7,173,948.60

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Solution

The fourth proportional to 12,975,961.32, 17,905,564.08 and 7,173,948.60 is: 9,899,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975,961.32 : 17,905,564.08 = 7,173,948.60 : x
  2. Step 2: Convert to fraction form
    12,975,961.32/17,905,564.08 = 7,173,948.60/x
  3. Step 3: Cross multiply
    12,975,961.32x = 17,905,564.08 × 7,173,948.60
  4. Step 4: Simplify right side
    12,975,961.32x = 128,453,596,363,926.27
  5. Step 5: Solve for x
    x = 128,453,596,363,926.27/12,975,961.32
  6. Step 6: Final answer
    x = 9,899,351.05

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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.