Home / 15,708.36-21,655.10-11,230.50

Finding the Fourth Proportional to 15,708.36, 21,655.10 and 11,230.50

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Solution

The fourth proportional to 15,708.36, 21,655.10 and 11,230.50 is: 15,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.36 : 21,655.10 = 11,230.50 : x
  2. Step 2: Convert to fraction form
    15,708.36/21,655.10 = 11,230.50/x
  3. Step 3: Cross multiply
    15,708.36x = 21,655.10 × 11,230.50
  4. Step 4: Simplify right side
    15,708.36x = 243,197,600.55
  5. Step 5: Solve for x
    x = 243,197,600.55/15,708.36
  6. Step 6: Final answer
    x = 15,482.05

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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.