Home / 12,038.41-18,030.07-10,130.05

Finding the Fourth Proportional to 12,038.41, 18,030.07 and 10,130.05

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Solution

The fourth proportional to 12,038.41, 18,030.07 and 10,130.05 is: 15,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.41 : 18,030.07 = 10,130.05 : x
  2. Step 2: Convert to fraction form
    12,038.41/18,030.07 = 10,130.05/x
  3. Step 3: Cross multiply
    12,038.41x = 18,030.07 × 10,130.05
  4. Step 4: Simplify right side
    12,038.41x = 182,645,510.60
  5. Step 5: Solve for x
    x = 182,645,510.60/12,038.41
  6. Step 6: Final answer
    x = 15,171.90

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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.