Home / 15,470.18-21,294.66-13,477.28

Finding the Fourth Proportional to 15,470.18, 21,294.66 and 13,477.28

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Solution

The fourth proportional to 15,470.18, 21,294.66 and 13,477.28 is: 18,551.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.18 : 21,294.66 = 13,477.28 : x
  2. Step 2: Convert to fraction form
    15,470.18/21,294.66 = 13,477.28/x
  3. Step 3: Cross multiply
    15,470.18x = 21,294.66 × 13,477.28
  4. Step 4: Simplify right side
    15,470.18x = 286,994,095.32
  5. Step 5: Solve for x
    x = 286,994,095.32/15,470.18
  6. Step 6: Final answer
    x = 18,551.44

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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.