Home / 13,240.36-18,271.02-7,651

Finding the Fourth Proportional to 13,240.36, 18,271.02 and 7,651

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Solution

The fourth proportional to 13,240.36, 18,271.02 and 7,651 is: 10,557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.36 : 18,271.02 = 7,651 : x
  2. Step 2: Convert to fraction form
    13,240.36/18,271.02 = 7,651/x
  3. Step 3: Cross multiply
    13,240.36x = 18,271.02 × 7,651
  4. Step 4: Simplify right side
    13,240.36x = 139,791,574.02
  5. Step 5: Solve for x
    x = 139,791,574.02/13,240.36
  6. Step 6: Final answer
    x = 10,557.99

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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.