Home / 15,142.02-20,900.70-10,360.16

Finding the Fourth Proportional to 15,142.02, 20,900.70 and 10,360.16

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Solution

The fourth proportional to 15,142.02, 20,900.70 and 10,360.16 is: 14,300.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,142.02 : 20,900.70 = 10,360.16 : x
  2. Step 2: Convert to fraction form
    15,142.02/20,900.70 = 10,360.16/x
  3. Step 3: Cross multiply
    15,142.02x = 20,900.70 × 10,360.16
  4. Step 4: Simplify right side
    15,142.02x = 216,534,596.11
  5. Step 5: Solve for x
    x = 216,534,596.11/15,142.02
  6. Step 6: Final answer
    x = 14,300.25

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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.