Home / 13,555.73-18,702.64-7,586.45

Finding the Fourth Proportional to 13,555.73, 18,702.64 and 7,586.45

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Solution

The fourth proportional to 13,555.73, 18,702.64 and 7,586.45 is: 10,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.73 : 18,702.64 = 7,586.45 : x
  2. Step 2: Convert to fraction form
    13,555.73/18,702.64 = 7,586.45/x
  3. Step 3: Cross multiply
    13,555.73x = 18,702.64 × 7,586.45
  4. Step 4: Simplify right side
    13,555.73x = 141,886,643.23
  5. Step 5: Solve for x
    x = 141,886,643.23/13,555.73
  6. Step 6: Final answer
    x = 10,466.91

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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.