Home / 15,430.24-21,294.12-9,465.20

Finding the Fourth Proportional to 15,430.24, 21,294.12 and 9,465.20

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Solution

The fourth proportional to 15,430.24, 21,294.12 and 9,465.20 is: 13,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.24 : 21,294.12 = 9,465.20 : x
  2. Step 2: Convert to fraction form
    15,430.24/21,294.12 = 9,465.20/x
  3. Step 3: Cross multiply
    15,430.24x = 21,294.12 × 9,465.20
  4. Step 4: Simplify right side
    15,430.24x = 201,553,104.62
  5. Step 5: Solve for x
    x = 201,553,104.62/15,430.24
  6. Step 6: Final answer
    x = 13,062.21

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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.