Home / 18,870.48-26,038.80-10,485.36

Finding the Fourth Proportional to 18,870.48, 26,038.80 and 10,485.36

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Solution

The fourth proportional to 18,870.48, 26,038.80 and 10,485.36 is: 14,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.48 : 26,038.80 = 10,485.36 : x
  2. Step 2: Convert to fraction form
    18,870.48/26,038.80 = 10,485.36/x
  3. Step 3: Cross multiply
    18,870.48x = 26,038.80 × 10,485.36
  4. Step 4: Simplify right side
    18,870.48x = 273,026,191.97
  5. Step 5: Solve for x
    x = 273,026,191.97/18,870.48
  6. Step 6: Final answer
    x = 14,468.43

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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.