Home / 15,599.84-21,555.28-11,560.86

Finding the Fourth Proportional to 15,599.84, 21,555.28 and 11,560.86

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Solution

The fourth proportional to 15,599.84, 21,555.28 and 11,560.86 is: 15,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,599.84 : 21,555.28 = 11,560.86 : x
  2. Step 2: Convert to fraction form
    15,599.84/21,555.28 = 11,560.86/x
  3. Step 3: Cross multiply
    15,599.84x = 21,555.28 × 11,560.86
  4. Step 4: Simplify right side
    15,599.84x = 249,197,574.34
  5. Step 5: Solve for x
    x = 249,197,574.34/15,599.84
  6. Step 6: Final answer
    x = 15,974.37

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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.