Home / 10,692.81-14,746.46-7,160.81

Finding the Fourth Proportional to 10,692.81, 14,746.46 and 7,160.81

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Solution

The fourth proportional to 10,692.81, 14,746.46 and 7,160.81 is: 9,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,692.81 : 14,746.46 = 7,160.81 : x
  2. Step 2: Convert to fraction form
    10,692.81/14,746.46 = 7,160.81/x
  3. Step 3: Cross multiply
    10,692.81x = 14,746.46 × 7,160.81
  4. Step 4: Simplify right side
    10,692.81x = 105,596,488.70
  5. Step 5: Solve for x
    x = 105,596,488.70/10,692.81
  6. Step 6: Final answer
    x = 9,875.47

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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.