Home / 18,688.16-28,036.56-10,903.52

Finding the Fourth Proportional to 18,688.16, 28,036.56 and 10,903.52

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Solution

The fourth proportional to 18,688.16, 28,036.56 and 10,903.52 is: 16,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.16 : 28,036.56 = 10,903.52 : x
  2. Step 2: Convert to fraction form
    18,688.16/28,036.56 = 10,903.52/x
  3. Step 3: Cross multiply
    18,688.16x = 28,036.56 × 10,903.52
  4. Step 4: Simplify right side
    18,688.16x = 305,697,192.69
  5. Step 5: Solve for x
    x = 305,697,192.69/18,688.16
  6. Step 6: Final answer
    x = 16,357.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.