Home / 15,215.61-22,693.28-14,686.55

Finding the Fourth Proportional to 15,215.61, 22,693.28 and 14,686.55

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Solution

The fourth proportional to 15,215.61, 22,693.28 and 14,686.55 is: 21,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215.61 : 22,693.28 = 14,686.55 : x
  2. Step 2: Convert to fraction form
    15,215.61/22,693.28 = 14,686.55/x
  3. Step 3: Cross multiply
    15,215.61x = 22,693.28 × 14,686.55
  4. Step 4: Simplify right side
    15,215.61x = 333,285,804.48
  5. Step 5: Solve for x
    x = 333,285,804.48/15,215.61
  6. Step 6: Final answer
    x = 21,904.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.