Home / 8,707.90-12,016.91-4,729.08

Finding the Fourth Proportional to 8,707.90, 12,016.91 and 4,729.08

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Solution

The fourth proportional to 8,707.90, 12,016.91 and 4,729.08 is: 6,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.90 : 12,016.91 = 4,729.08 : x
  2. Step 2: Convert to fraction form
    8,707.90/12,016.91 = 4,729.08/x
  3. Step 3: Cross multiply
    8,707.90x = 12,016.91 × 4,729.08
  4. Step 4: Simplify right side
    8,707.90x = 56,828,905.10
  5. Step 5: Solve for x
    x = 56,828,905.10/8,707.90
  6. Step 6: Final answer
    x = 6,526.13

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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.