Home / 9,066.90-12,511.95-5,290.28

Finding the Fourth Proportional to 9,066.90, 12,511.95 and 5,290.28

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Solution

The fourth proportional to 9,066.90, 12,511.95 and 5,290.28 is: 7,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,066.90 : 12,511.95 = 5,290.28 : x
  2. Step 2: Convert to fraction form
    9,066.90/12,511.95 = 5,290.28/x
  3. Step 3: Cross multiply
    9,066.90x = 12,511.95 × 5,290.28
  4. Step 4: Simplify right side
    9,066.90x = 66,191,656.29
  5. Step 5: Solve for x
    x = 66,191,656.29/9,066.90
  6. Step 6: Final answer
    x = 7,300.36

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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.