Home / 18,315.55-25,275.75-10,762.07

Finding the Fourth Proportional to 18,315.55, 25,275.75 and 10,762.07

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Solution

The fourth proportional to 18,315.55, 25,275.75 and 10,762.07 is: 14,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.55 : 25,275.75 = 10,762.07 : x
  2. Step 2: Convert to fraction form
    18,315.55/25,275.75 = 10,762.07/x
  3. Step 3: Cross multiply
    18,315.55x = 25,275.75 × 10,762.07
  4. Step 4: Simplify right side
    18,315.55x = 272,019,224.07
  5. Step 5: Solve for x
    x = 272,019,224.07/18,315.55
  6. Step 6: Final answer
    x = 14,851.82

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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.