Home / 15,566.80-21,475.69-10,190.55

Finding the Fourth Proportional to 15,566.80, 21,475.69 and 10,190.55

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Solution

The fourth proportional to 15,566.80, 21,475.69 and 10,190.55 is: 14,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,566.80 : 21,475.69 = 10,190.55 : x
  2. Step 2: Convert to fraction form
    15,566.80/21,475.69 = 10,190.55/x
  3. Step 3: Cross multiply
    15,566.80x = 21,475.69 × 10,190.55
  4. Step 4: Simplify right side
    15,566.80x = 218,849,041.78
  5. Step 5: Solve for x
    x = 218,849,041.78/15,566.80
  6. Step 6: Final answer
    x = 14,058.70

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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.