Home / 15,557.77-21,439.03-11,068.95

Finding the Fourth Proportional to 15,557.77, 21,439.03 and 11,068.95

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Solution

The fourth proportional to 15,557.77, 21,439.03 and 11,068.95 is: 15,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.77 : 21,439.03 = 11,068.95 : x
  2. Step 2: Convert to fraction form
    15,557.77/21,439.03 = 11,068.95/x
  3. Step 3: Cross multiply
    15,557.77x = 21,439.03 × 11,068.95
  4. Step 4: Simplify right side
    15,557.77x = 237,307,551.12
  5. Step 5: Solve for x
    x = 237,307,551.12/15,557.77
  6. Step 6: Final answer
    x = 15,253.31

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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.