Home / 10,256.02-14,145.36-6,620.74

Finding the Fourth Proportional to 10,256.02, 14,145.36 and 6,620.74

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Solution

The fourth proportional to 10,256.02, 14,145.36 and 6,620.74 is: 9,131.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.02 : 14,145.36 = 6,620.74 : x
  2. Step 2: Convert to fraction form
    10,256.02/14,145.36 = 6,620.74/x
  3. Step 3: Cross multiply
    10,256.02x = 14,145.36 × 6,620.74
  4. Step 4: Simplify right side
    10,256.02x = 93,652,750.77
  5. Step 5: Solve for x
    x = 93,652,750.77/10,256.02
  6. Step 6: Final answer
    x = 9,131.49

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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.