Home / 15,477.20-21,350.52-9,802.40

Finding the Fourth Proportional to 15,477.20, 21,350.52 and 9,802.40

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Solution

The fourth proportional to 15,477.20, 21,350.52 and 9,802.40 is: 13,522.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.20 : 21,350.52 = 9,802.40 : x
  2. Step 2: Convert to fraction form
    15,477.20/21,350.52 = 9,802.40/x
  3. Step 3: Cross multiply
    15,477.20x = 21,350.52 × 9,802.40
  4. Step 4: Simplify right side
    15,477.20x = 209,286,337.25
  5. Step 5: Solve for x
    x = 209,286,337.25/15,477.20
  6. Step 6: Final answer
    x = 13,522.24

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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.