Home / 8,715.40-12,023.04-5,569.36

Finding the Fourth Proportional to 8,715.40, 12,023.04 and 5,569.36

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Solution

The fourth proportional to 8,715.40, 12,023.04 and 5,569.36 is: 7,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.40 : 12,023.04 = 5,569.36 : x
  2. Step 2: Convert to fraction form
    8,715.40/12,023.04 = 5,569.36/x
  3. Step 3: Cross multiply
    8,715.40x = 12,023.04 × 5,569.36
  4. Step 4: Simplify right side
    8,715.40x = 66,960,638.05
  5. Step 5: Solve for x
    x = 66,960,638.05/8,715.40
  6. Step 6: Final answer
    x = 7,683.03

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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.