Home / 15,616.37-21,557-10,587.48

Finding the Fourth Proportional to 15,616.37, 21,557 and 10,587.48

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Solution

The fourth proportional to 15,616.37, 21,557 and 10,587.48 is: 14,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.37 : 21,557 = 10,587.48 : x
  2. Step 2: Convert to fraction form
    15,616.37/21,557 = 10,587.48/x
  3. Step 3: Cross multiply
    15,616.37x = 21,557 × 10,587.48
  4. Step 4: Simplify right side
    15,616.37x = 228,234,306.36
  5. Step 5: Solve for x
    x = 228,234,306.36/15,616.37
  6. Step 6: Final answer
    x = 14,615.07

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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.