Home / 15,445.08-21,290.61-9,465.66

Finding the Fourth Proportional to 15,445.08, 21,290.61 and 9,465.66

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Solution

The fourth proportional to 15,445.08, 21,290.61 and 9,465.66 is: 13,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.08 : 21,290.61 = 9,465.66 : x
  2. Step 2: Convert to fraction form
    15,445.08/21,290.61 = 9,465.66/x
  3. Step 3: Cross multiply
    15,445.08x = 21,290.61 × 9,465.66
  4. Step 4: Simplify right side
    15,445.08x = 201,529,675.45
  5. Step 5: Solve for x
    x = 201,529,675.45/15,445.08
  6. Step 6: Final answer
    x = 13,048.15

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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.