Home / 13,307.48-18,363.50-7,339.20

Finding the Fourth Proportional to 13,307.48, 18,363.50 and 7,339.20

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Solution

The fourth proportional to 13,307.48, 18,363.50 and 7,339.20 is: 10,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.48 : 18,363.50 = 7,339.20 : x
  2. Step 2: Convert to fraction form
    13,307.48/18,363.50 = 7,339.20/x
  3. Step 3: Cross multiply
    13,307.48x = 18,363.50 × 7,339.20
  4. Step 4: Simplify right side
    13,307.48x = 134,773,399.20
  5. Step 5: Solve for x
    x = 134,773,399.20/13,307.48
  6. Step 6: Final answer
    x = 10,127.64

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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.