Home / 19,506.19-26,931.74-12,803.21

Finding the Fourth Proportional to 19,506.19, 26,931.74 and 12,803.21

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Solution

The fourth proportional to 19,506.19, 26,931.74 and 12,803.21 is: 17,677.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,506.19 : 26,931.74 = 12,803.21 : x
  2. Step 2: Convert to fraction form
    19,506.19/26,931.74 = 12,803.21/x
  3. Step 3: Cross multiply
    19,506.19x = 26,931.74 × 12,803.21
  4. Step 4: Simplify right side
    19,506.19x = 344,812,848.71
  5. Step 5: Solve for x
    x = 344,812,848.71/19,506.19
  6. Step 6: Final answer
    x = 17,677.10

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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.