Home / 13,276.47-18,320.77-7,610.02

Finding the Fourth Proportional to 13,276.47, 18,320.77 and 7,610.02

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Solution

The fourth proportional to 13,276.47, 18,320.77 and 7,610.02 is: 10,501.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.47 : 18,320.77 = 7,610.02 : x
  2. Step 2: Convert to fraction form
    13,276.47/18,320.77 = 7,610.02/x
  3. Step 3: Cross multiply
    13,276.47x = 18,320.77 × 7,610.02
  4. Step 4: Simplify right side
    13,276.47x = 139,421,426.12
  5. Step 5: Solve for x
    x = 139,421,426.12/13,276.47
  6. Step 6: Final answer
    x = 10,501.39

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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.