Home / 15,565.56-21,480.60-8,492.10

Finding the Fourth Proportional to 15,565.56, 21,480.60 and 8,492.10

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Solution

The fourth proportional to 15,565.56, 21,480.60 and 8,492.10 is: 11,719.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.56 : 21,480.60 = 8,492.10 : x
  2. Step 2: Convert to fraction form
    15,565.56/21,480.60 = 8,492.10/x
  3. Step 3: Cross multiply
    15,565.56x = 21,480.60 × 8,492.10
  4. Step 4: Simplify right side
    15,565.56x = 182,415,403.26
  5. Step 5: Solve for x
    x = 182,415,403.26/15,565.56
  6. Step 6: Final answer
    x = 11,719.17

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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.