Home / 14,649.93-21,970.40-5,288.81

Finding the Fourth Proportional to 14,649.93, 21,970.40 and 5,288.81

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Solution

The fourth proportional to 14,649.93, 21,970.40 and 5,288.81 is: 7,931.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.93 : 21,970.40 = 5,288.81 : x
  2. Step 2: Convert to fraction form
    14,649.93/21,970.40 = 5,288.81/x
  3. Step 3: Cross multiply
    14,649.93x = 21,970.40 × 5,288.81
  4. Step 4: Simplify right side
    14,649.93x = 116,197,271.22
  5. Step 5: Solve for x
    x = 116,197,271.22/14,649.93
  6. Step 6: Final answer
    x = 7,931.59

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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.