Home / 13,114.85-19,681.14-5,715.02

Finding the Fourth Proportional to 13,114.85, 19,681.14 and 5,715.02

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Solution

The fourth proportional to 13,114.85, 19,681.14 and 5,715.02 is: 8,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.85 : 19,681.14 = 5,715.02 : x
  2. Step 2: Convert to fraction form
    13,114.85/19,681.14 = 5,715.02/x
  3. Step 3: Cross multiply
    13,114.85x = 19,681.14 × 5,715.02
  4. Step 4: Simplify right side
    13,114.85x = 112,478,179.36
  5. Step 5: Solve for x
    x = 112,478,179.36/13,114.85
  6. Step 6: Final answer
    x = 8,576.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.