Home / 14,688.48-20,280.63-9,030.81

Finding the Fourth Proportional to 14,688.48, 20,280.63 and 9,030.81

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Solution

The fourth proportional to 14,688.48, 20,280.63 and 9,030.81 is: 12,468.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.48 : 20,280.63 = 9,030.81 : x
  2. Step 2: Convert to fraction form
    14,688.48/20,280.63 = 9,030.81/x
  3. Step 3: Cross multiply
    14,688.48x = 20,280.63 × 9,030.81
  4. Step 4: Simplify right side
    14,688.48x = 183,150,516.21
  5. Step 5: Solve for x
    x = 183,150,516.21/14,688.48
  6. Step 6: Final answer
    x = 12,468.99

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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.